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toolchain: introduce HOSTCC_VERSION and fix gcc-4.3.x build with old host CCs

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gcc < 4.2.0 doesn't support -Wno-overlength-stings, but gcc-4.3.x configure
fails to detect that, breaking the build.

Work around it by detecting the host gcc version (and store in HOSTCC_VERSION)
and set the proper configure variables for gcc < 4.2.0.
This commit is contained in:
Peter Korsgaard 2009-01-19 09:18:46 +00:00
parent 4bcbf87c99
commit bc65432230
2 changed files with 13 additions and 2 deletions
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4
package/Makefile.in
View File

@ -185,6 +185,10 @@ INSTALL=/usr/bin/install
FLEX:=$(shell which flex || type -p flex)
BISON:=$(shell which bison || type -p bison)
# hostcc version as an integer - E.G. 4.3.2 => 432
HOSTCC_VERSION:=$(shell $(HOSTCC) --version | \
sed -n 's/^.* \([0-9]*\)\.\([0-9]*\)\.\([0-9]*\)[ ]*.*$$/\1\2\3/p')
HOST_ARCH:=$(shell $(HOSTCC) -dumpmachine | sed -e s'/-.*//' \
-e 's/sparc.*/sparc/' \
-e 's/arm.*/arm/g' \

11
toolchain/gcc/gcc-uclibc-4.x.mk
View File

@ -145,6 +145,13 @@ ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y)
GCC_DECIMAL_FLOAT:=--disable-decimal-float
endif
# gcc version < 4.2.0 don't have -Wno-overlength-strings and the configure
# script has problems detecting it, so help it
ifeq ($(shell test $(HOSTCC_VERSION) -lt 420 && echo OLD),OLD)
GCC_CONF_ENV:=acx_cv_prog_cc_pedantic__Wno_long_long__Wno_variadic_macros_____________Wno_overlength_strings=no \
acx_cv_prog_cc_warning__Wno_overlength_strings=no
endif
HOST_SOURCE+=gcc-source
$(DL_DIR)/$(GCC_SOURCE):
@ -227,7 +234,7 @@ $(GCC_BUILD_DIR1)/.configured: $(GCC_DIR)/.patched
$(GCC_BUILD_DIR1)/.compiled: $(GCC_BUILD_DIR1)/.configured
# gcc >= 4.3.0 have to also build all-target-libgcc
ifeq ($(BR2_GCC_SUPPORTS_FINEGRAINEDMTUNE),y)
$(MAKE) -C $(GCC_BUILD_DIR1) all-gcc all-target-libgcc
$(GCC_CONF_ENV) $(MAKE) -C $(GCC_BUILD_DIR1) all-gcc all-target-libgcc
else
$(MAKE) -C $(GCC_BUILD_DIR1) all-gcc
endif
@ -301,7 +308,7 @@ $(GCC_BUILD_DIR2)/.configured: $(GCC_SRC_DIR)/.patched $(GCC_STAGING_PREREQ)
touch $@
$(GCC_BUILD_DIR2)/.compiled: $(GCC_BUILD_DIR2)/.configured
$(MAKE) -C $(GCC_BUILD_DIR2) all
$(GCC_CONF_ENV) $(MAKE) -C $(GCC_BUILD_DIR2) all
touch $@
$(GCC_BUILD_DIR2)/.installed: $(GCC_BUILD_DIR2)/.compiled